10H Will of the Emperor Sparks?

So my guild is doing 10H Will of the Emp and are looking for classes to eat sparks and was wondering if an Enh shaman is capable of soaking a spark or not, with Astral Shift + Shamanistic Rage + HsT Glyph for 10% nature reduction? maybe even a priest bubble.

Any help on the matter would be great.

Edit: was also wondering if rockbiter with unleashed fury talent would make much diff or wont even matter, and should just stick with my Flametongue.

Sure they can. It's 750,000 damage per spark, so any damage reduction would help, but any class can really soak the sparks. Though every class is also restricted by cooldowns. So in turn the Enh Shaman could soak it, but it will be ~2min before they can do it again(not sure of most CD's, but I think AS is 2min correct me if I'm wrong).

get 3rd tank to you Raid group and soaking problem solved , enh on Will 10 HC is to Kill Strenght and do some off Hels or to just stay 100% on bosses

Some guilds don't have that freedom, which is especially true for the guilds who are this far in the tier working on that boss.
I could even soak one as ele with rockbiter + unleash with astral shift up (it's not like ele is the best spec for this boss anyways so you don't really gimp the raid with speccing into unleash fury).